Home / 66,178.20-99,211.47-28,710.06

Finding the Fourth Proportional to 66,178.20, 99,211.47 and 28,710.06

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Solution

The fourth proportional to 66,178.20, 99,211.47 and 28,710.06 is: 43,040.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,178.20 : 99,211.47 = 28,710.06 : x
  2. Step 2: Convert to fraction form
    66,178.20/99,211.47 = 28,710.06/x
  3. Step 3: Cross multiply
    66,178.20x = 99,211.47 × 28,710.06
  4. Step 4: Simplify right side
    66,178.20x = 2,848,367,256.39
  5. Step 5: Solve for x
    x = 2,848,367,256.39/66,178.20
  6. Step 6: Final answer
    x = 43,040.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.